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Aon plc

AON
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000315293

In the last 90 days, Aon plc insiders filed 1 open-market purchase and 3 sales; 1,273 institutions reported holding it in 13F filings for Q2 2026, worth $63.9B in total; 4 superinvestors hold it, including Viking Global Investors and Baupost Group.

13F holders, Q4 2021

Institutional positions in Aon plc as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
995
+90 vs. Q3 2021
Shares held
188.4M
−11.6M (−5.8%) vs. Q3 2021
Total value
$56.5B
−$622.9M (−1.1%) vs. Q3 2021
New holders
152
283 more added
Sold out
62
384 more reduced

12 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 995 institutions
Q1 2021: 919 institutionsQ2 2021: 912 institutionsQ3 2021: 917 institutionsQ4 2021: 995 institutionsQ1 2022: 985 institutionsQ2 2022: 966 institutionsQ3 2022: 950 institutionsQ4 2022: 1,034 institutionsQ1 2023: 1,014 institutionsQ2 2023: 1,025 institutionsQ3 2023: 1,049 institutionsQ4 2023: 1,067 institutionsQ1 2024: 1,087 institutionsQ2 2024: 1,111 institutionsQ3 2024: 1,149 institutionsQ4 2024: 1,196 institutionsQ1 2025: 1,276 institutionsQ2 2025: 1,233 institutionsQ3 2025: 1,255 institutionsQ4 2025: 1,289 institutionsQ1 2026: 1,266 institutionsQ2 2026: 1,273 institutions
Value heldQ4 2021: $56.5B
Q1 2021: $51.4BQ2 2021: $53.4BQ3 2021: $57.2BQ4 2021: $56.5BQ1 2022: $61.2BQ2 2022: $49.5BQ3 2022: $48.4BQ4 2022: $52.6BQ1 2023: $55.7BQ2 2023: $61.2BQ3 2023: $56.4BQ4 2023: $49.8BQ1 2024: $57.4BQ2 2024: $55.4BQ3 2024: $66.1BQ4 2024: $69.1BQ1 2025: $77.1BQ2 2025: $69.3BQ3 2025: $66.3BQ4 2025: $66.7BQ1 2026: $60.6BQ2 2026: $63.9B
Institutions holding AON and their total value by quarter
QuarterHoldersValue
Q2 20261,273$63.9B
Q1 20261,266$60.6B
Q4 20251,289$66.7B
Q3 20251,255$66.3B
Q2 20251,233$69.3B
Q1 20251,276$77.1B
Q4 20241,196$69.1B
Q3 20241,149$66.1B
Q2 20241,111$55.4B
Q1 20241,087$57.4B
Q4 20231,067$49.8B
Q3 20231,049$56.4B
Q2 20231,025$61.2B
Q1 20231,014$55.7B
Q4 20221,034$52.6B
Q3 2022950$48.4B
Q2 2022966$49.5B
Q1 2022985$61.2B
Q4 2021995$56.5B
Q3 2021917$57.2B
Q2 2021912$53.4B
Q1 2021919$51.4B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Aon plc; share changes are against Q3 2021.

Institutions holding AON in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Johnson Investment Counsel Inc19,984$6.01M0.07%−41−0.2%Reduced
First National Bank of Omaha20,011$6.01M0.29%−323−1.6%Reduced
Pictet & Cie (Europe) SA20,452$6.15M0.21%−3,019−12.9%Reduced
Jane Street Group, LLC21,059$6.33M0.01%+11,335+116.6%Added
Boston Common Asset Management, LLC21,066$6.33M0.26%−945−4.3%Reduced
MRJ Capital Inc21,507$6.46M3.73%−2,513−10.5%Reduced
Equitable Trust Co21,699$6.52M0.40%+1,547+7.7%Added
Tudor Investment Corp Et Al22,106$6.64M0.13%+22,106New
Van Eck Associates Corp22,588$6.79M0.02%+1,246+5.8%Added
Robeco Schweiz AG22,792$6.85M0.09%+1,457+6.8%Added
Northwestern Mutual Wealth Management Co22,867$6.87M0.01%+1,334+6.2%Added
Credential Qtrade Securities Inc.22,873$6.87M0.46%+1,272+5.9%Added
Handelsbanken Fonder AB23,047$6.93M0.03%−2,073−8.3%Reduced
Violich Capital Management, Inc.23,120$6.95M1.00%−50−0.2%Reduced
Citadel Advisors LLC23,690$7.12M0.01%−65,959−73.6%Reduced
Carderock Capital Management Inc24,017$7.22M1.73%−72−0.3%Reduced
Comerica Bank27,146$7.27M0.05%−2,249−7.7%Reduced
Baird Financial Group, Inc.24,503$7.37M0.02%−330−1.3%Reduced
Foyston, Gordon, & Payne Inc24,586$7.39M1.72%−935−3.7%Reduced
Regions Financial Corp24,631$7.40M0.06%−1,657−6.3%Reduced
Mirae Asset Global Investments Co., Ltd.25,425$7.64M0.02%+7,148+39.1%Added
Fifth Third Bancorp25,702$7.72M0.03%+197+0.8%Added
Commerce Bank25,813$7.76M0.05%−405−1.5%Reduced
Tower Research Capital LLC (TRC)25,847$7.77M0.13%+22,522+677.4%Added
Dai-Ichi Life Insurance Company, Ltd26,756$8.04M0.10%−368−1.4%Reduced
Boothbay Fund Management, LLC26,985$8.11M0.27%+17,985+199.8%Added
Capital International Ltd27,027$8.12M0.41%−160−0.6%Reduced
Xponance, Inc.27,255$8.19M0.13%+2,408+9.7%Added
Strategy Asset Managers LLC27,310$8.21M2.13%−296−1.1%Reduced
US Bancorp27,384$8.23M0.01%+86+0.3%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys27,656$8.31M0.09%−634−2.2%Reduced
Nissay Asset Management Corp27,773$8.35M0.06%+1,550+5.9%Added
Man Group plc28,045$8.43M0.03%−14,041−33.4%Reduced
Zevin Asset Management LLC28,159$8.46M1.52%+372+1.3%Added
ING Groep NV28,757$8.64M0.08%+9,805+51.7%Added
Mutual of America Capital Management LLC29,100$8.75M0.09%−521−1.8%Reduced
Allspring Global Investments Holdings, LLC29,255$8.79M0.01%+29,255New
Aperture Investors, LLC29,567$8.89M1.14%−13,581−31.5%Reduced
Worldquant Millennium Advisors LLC29,965$9.01M0.18%−99,032−76.8%Reduced
William Blair Investment Management, LLC30,064$9.04M0.02%−15,241−33.6%Reduced
Commonwealth Equity Services, LLC30,064$9.04M0.02%−178−0.6%Reduced
Peapack Gladstone Financial Corp30,321$9.11M0.17%−7,217−19.2%Reduced
Texas Permanent School Fund30,391$9.13M0.11%−4,484−12.9%Reduced
Metropolitan Life Insurance Co30,876$9.28M0.13%−1,604−4.9%Reduced
Fiduciary Group LLC31,385$9.43M1.05%+384+1.2%Added
State of Alaska, Department of Revenue31,891$9.59M0.09%−2,755−8.0%Reduced
CIBC World Markets Inc.32,313$9.71M0.03%−1,965−5.7%Reduced
Citizens Financial Group Inc32,362$9.73M0.33%−476−1.4%Reduced
Yousif Capital Management, LLC33,969$10.2M0.11%+33,969New
LPL Financial LLC34,447$10.4M0.01%−2,513−6.8%Reduced
Sustainable Growth Advisers, LP34,481$10.4M0.05%−3,405−9.0%Reduced
M&T Bank Corp34,984$10.5M0.04%−2,131−5.7%Reduced
Thrivent Financial for Lutherans35,709$10.7M0.02%−2,521−6.6%Reduced
Stephens Inc35,967$10.8M0.16%−337−0.9%Reduced
Cumberland Partners Ltd36,030$10.8M0.76%+9,030+33.4%Added
HighTower Advisors, LLC36,242$10.9M0.02%+321+0.9%Added
Point72 Asset Management, L.P.36,400$10.9M0.05%+36,400New
Public Sector Pension Investment Board36,764$11.1M0.06%−1,320−3.5%Reduced
Ninety One UK Ltd36,810$11.1M0.03%+36,810New
ExodusPoint Capital Management, LP37,510$11.3M0.14%+37,510New
Cullen/Frost Bankers, Inc.37,523$11.3M0.21%−12,022−24.3%Reduced
Gulf International Bank (UK) Ltd38,000$11.4M0.16%−7,702−16.9%Reduced
Public Employees Retirement Association of Colorado38,337$11.5M0.05%−175−0.5%Reduced
Westpac Banking Corp38,574$11.6M0.12%−1,818−4.5%Reduced
Utah Retirement Systems39,684$11.9M0.15%−800−2.0%Reduced
YHB Investment Advisors, Inc.40,827$12.3M0.97%−3,490−7.9%Reduced
Squarepoint Ops LLC41,446$12.5M0.06%+24,743+148.1%Added
Two Sigma Advisers, LP41,700$12.5M0.03%−22,400−34.9%Reduced
Silvercrest Asset Management Group LLC41,818$12.6M0.08%+729+1.8%Added
Majedie Asset Management Ltd42,267$12.7M0.97%−33,095−43.9%Reduced
Healthcare of Ontario Pension Plan Trust Fund42,517$12.8M0.03%+41,944+7,320.1%Added
Hantz Financial Services, Inc.42,889$12.9M0.37%+884+2.1%Added
Bank of Nova Scotia43,263$13.0M0.02%+6,103+16.4%Added
Bridgewater Associates, LP43,533$13.1M0.08%−48,905−52.9%Reduced
Kirr Marbach & Co LLC43,777$13.2M3.48%−948−2.1%Reduced
Swiss Life Asset Management Ltd43,786$13.2M0.17%+663+1.5%Added
Teacher Retirement System of Texas43,862$13.2M0.06%+7,644+21.1%Added
Cubist Systematic Strategies, LLC44,603$13.4M0.13%−2,932−6.2%Reduced
Guggenheim Capital LLC44,623$13.4M0.07%−15,641−26.0%Reduced
Advisor Group Holdings, Inc.44,904$13.5M0.03%+12,144+37.1%Added
Brinker Capital Investments, LLC45,473$13.7M0.20%−10,104−18.2%Reduced
Marks Group Wealth Management, Inc45,421$13.7M1.67%−1,498−3.2%Reduced
Greenwood Gearhart Inc46,710$14.0M1.94%+274+0.6%Added
Jefferies Group LLC47,240$14.2M0.26%−22,664−32.4%Reduced
People's United Financial, Inc.48,424$14.6M0.35%−462−0.9%Reduced
MetLife Investment Management48,680$14.6M0.12%−2,307−4.5%Reduced
Old National Bancorp49,450$14.9M0.53%−1,427−2.8%Reduced
Corsair Capital Management, L.P.49,811$15.0M2.81%−1,489−2.9%Reduced
USS Investment Management Ltd49,909$15.0M0.12%00.0%Unchanged
Oregon Public Employees Retirement Fund50,109$15.1M0.17%+3,901+8.4%Added
Nuveen Asset Management, LLC50,339$15.1M0.00%−12,588−20.0%Reduced
Nisa Investment Advisors, LLC54,962$15.2M0.11%−7,832−12.5%Reduced
Kornitzer Capital Management Inc50,625$15.2M0.23%00.0%Unchanged
Biltmore Family Office, LLC51,174$15.4M2.93%+51,174New
Truist Financial Corp51,755$15.6M0.02%−11,410−18.1%Reduced
Voloridge Investment Management, LLC52,155$15.7M0.09%−65,477−55.7%Reduced
DekaBank Deutsche Girozentrale52,503$15.7M0.04%+6,450+14.0%Added
Nomura Asset Management Co Ltd52,381$15.7M0.08%+2,373+4.7%Added
Quent Capital, LLC52,803$15.9M3.36%+52,803New
First Republic Investment Management, Inc.53,271$16.0M0.03%+393+0.7%Added